Zobrazeno 1 - 10
of 35
pro vyhledávání: '"James William Bray"'
Publikováno v:
IEEE Transactions on Applied Superconductivity. 30:1-5
Quench protection is critical for superconducting systems, especially those containing significant energy to damage the system or its components during quench. We propose a new quench protection approach for multi-coil low temperature superconducting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30f171ab7e0cf8be444c416081664ac2
https://doi.org/10.1109/tasc.2020.2974208
https://doi.org/10.1109/tasc.2020.2974208
Autor:
Nidhishri Tapadia, James William Bray, Zierer Joseph John, Anbo Wu, Minfeng Xu, Wolfgang Stautner, David Allan Torrey, Michael Parizh
Publikováno v:
IEEE Transactions on Applied Superconductivity. 30:1-8
This paper develops a notional design for a 36 MW, 120 rpm motor for ship propulsion. The design exhibits high torque density (66 Nm/kg) and high efficiency (99%). This synchronous motor uses LTS (low temperature superconducting) field coils to creat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::517163947fa980f371d3bc9485701f27
https://doi.org/10.1109/tasc.2020.2980844
https://doi.org/10.1109/tasc.2020.2980844
Autor:
Evangelos Trifon Laskaris, B. Gerstler, K. Sivasubramaniam, James Pellegrino Alexander, T. Zhang, James William Bray, Murtuza Lokhandwalla, Manoj Ramprasad Shah
Publikováno v:
IEEE Transactions on Applied Superconductivity. 19:1656-1661
General Electric, under contract with the Air Force Research Labs (AFRL), has successfully developed and tested a high speed, multimegawatt superconducting generator. The generator was built to demonstrate high temperature superconducting (HTS) gener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2acbf2cfea93e7ff3c3f4b41cb9ef3fe
https://doi.org/10.1109/tasc.2009.2017758
https://doi.org/10.1109/tasc.2009.2017758
Autor:
T. Zhang, Minfeng Xu, Xianrui Huang, Evangelos Trifon Laskaris, James William Bray, K. Sivasubramaniam, A. Caiafa, Liang Li
Publikováno v:
IEEE Transactions on Applied Superconductivity. 18:1692-1697
Superconducting devices operating within a power system are expected to go through transient overload conditions during which the superconducting coil has to carry currents above the rated values. Designing the coil to remain superconducting through
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::975e1a0cb7328b51cd249a5e94410857
https://doi.org/10.1109/tasc.2008.2000902
https://doi.org/10.1109/tasc.2008.2000902
Autor:
Evangelos Trifon Laskaris, N.R. Garrigan, James William Bray, Manoj Ramprasad Shah, K. Sivasubramaniam
Publikováno v:
IEEE Transactions on Applied Superconductivity. 18:1-6
This paper describes a high power density high-temperature superconducting (HTS) electric machine topology that is scalable for marine propulsion and power generation. The design, currently being pursued for airborne applications, is based on homopol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6d3c386a0df394ce0c8084038276c9d
https://doi.org/10.1109/tasc.2008.917541
https://doi.org/10.1109/tasc.2008.917541
Autor:
Xianrui Huang, James William Bray, Evangelos Trifon Laskaris, T. Zhang, James Pellegrino Alexander, W. Wang, J.M. Fogarty, Liang Li
Publikováno v:
IEEE Transactions on Industry Applications. 44:1160-1164
A small high-temperature superconductor (HTS) coil was designed and tested at the General Electric Global Research Center to evaluate the overcurrent capability for the HTS generator rotor. The superconducting rotor coil is a layer-wound racetrack co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f673b49eca27c774117f5de8448910c2
https://doi.org/10.1109/tia.2008.926221
https://doi.org/10.1109/tia.2008.926221
Autor:
James William Bray, J.M. Fogarty, James Pellegrino Alexander, Evangelos Trifon Laskaris, T. Zhang, Xianrui Huang, Liang Li, W. Wang, K. Sivasubramaniam
Publikováno v:
IEEE Transactions on Applied Superconductivity. 17:1575-1578
When a synchronous generator connected to the power grid experiences a fault, it is required to stay on line, ride through the fault, and be able to carry full rated field current when the fault is cleared. The peak current during these events could
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b76cf5050091f8443fe4d951d0b33743
https://doi.org/10.1109/tasc.2007.899688
https://doi.org/10.1109/tasc.2007.899688
Autor:
J.M. Forgarty, T. Zhang, K. Sivasubramaniam, Evangelos Trifon Laskaris, James William Bray, R.A. Nold, Xianrui Huang
Publikováno v:
IEEE Transactions on Applied Superconductivity. 16:1971-1975
High-temperature superconducting (HTS) coils are generally stable against transient thermal disturbances. Protection against spontaneous quenches is not a main design issue for an HTS coil. However, HTS coils used in many electric devices such as mot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9f7da800131a83ea25ffc343429f194
https://doi.org/10.1109/tasc.2006.881814
https://doi.org/10.1109/tasc.2006.881814
Autor:
D. Ryan, Evangelos Trifon Laskaris, James William Bray, J.M. Fogarty, Alexander Otto, Xianrui Huang, E.J. Harley, K. Sivasubramaniam, Liang Li, A. den Ouden, A.D. Gadre
Publikováno v:
IEEE transactions on applied superconductivity, 15(2/2), 3684-3687. IEEE
HTS wires, which may be used in many devices such as magnets and rotating machines, may be subjected to mechanical strains from electromagnetic, thermal and centripetal forces. In some applications these strains will be repeated several thousand time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6c5e54109776b74a53e95d331de8f51
https://doi.org/10.1109/tasc.2005.849392
https://doi.org/10.1109/tasc.2005.849392
Autor:
James William Bray, Evangelos Trifon Laskaris, K. Weeber, J.M. Fogarty, K. Sivasubramaniam, L. Tomaino, Xianrui Huang, Stephen P Ashworth, D. Ryan
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 15:2162-2165
As part of the DOE-SPI funded project a commercial HTS utility-size generator is being developed based on GE's iron core superconducting generator technology. The iron core concept has significant advantages over air core designs. The rotor consists
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d663b16b9e631e8f1ad6faea1932f47
https://doi.org/10.1109/tasc.2005.849602
https://doi.org/10.1109/tasc.2005.849602